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Car Forum / Dodge / Dodge Trucks / July 2006Diesel Question
I don't own a diesel, never have. I've driven a few (925's, hummv's). I see diesel truck owners stop at a store or business and leave the engine running. Not on particularly cold or hot days, either. Why is that? Is there some reason not to shut the engine off?  Signature.boB Arrived: 2006 FXDI, Red. 1997 HD FXDWG - Turbocharged Stolen 11/26/05 in Denver 1HD1GEL10VY3200010 CO License J5822Z 2001 Dodge Dakota QC 5.9/4x4/3.92 1966 Mustang Coupe - Daily Driver 1965 FFR Cobra - 427W EFI, Damn Fast. > I don't own a diesel, never have. I've driven a few (925's, hummv's). I see >diesel truck owners stop at a store or business and leave the engine running. Not on >particularly cold or hot days, either. Why is that? Is there some reason not to >shut the engine off? Ego, they mostly want everyone to know they have one. You should let one idel for a few minutes after a hard pull but no need to in town driving. ----------------- The SnoMan www.thesnoman.com > Ego, they mostly want everyone to know they have one. You should let > one idel for a few minutes after a hard pull but no need to in town > driving. Yeah, that coking oil on turbo bearings is a real ego problem. SignatureMax "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) >> I don't own a diesel, never have. I've driven a few (925's, hummv's). >> I see [quoted text clipped - 10 lines] > The SnoMan > www.thesnoman.com >Yeah, that coking oil on turbo bearings is a real ego problem. It will not cook driving around town. Most turbos used water cooled bearings too. THere is no need at all to let is run while you in the store or during other errands unless you have two reason, one is you want to let evenone know that you have a diesel and the second it you want to make sure you are keeping the emmisions flowing for it too. . I have run some heavy equipment on and off ove rthe years and when I work one hard I may let it idle for a few minutes before I shut it down to stabilize tempaturess but I do with gas equipment too. If turbo diesels were as "fragile" as Max Dodge suggests, there would be a lot of dead ones out there. ----------------- The SnoMan www.thesnoman.com > >Yeah, that coking oil on turbo bearings is a real ego problem. > > It will not cook driving around town. Most turbos used water cooled > bearings too. funny ive never seen a water jacket pass through a exhaust manifold. Signature-Chris 05 CTD 06 Liberty CRD Real trucks don't need spark plugs > It will not cook driving around town. Most turbos used water cooled > bearings too. Why don't you stick with what you know - which apparently is limited to the gasoline engines of the 60's and 70's. Only the Duramax uses a water-cooled turbo - both the Powerstroke and the Cummins turbo's are air-cooled. While you are correct that just light driving around town will not get the turbo hot enough to cook the oil (assuming it's a good-quality oil), coming off the Interstate to a rest stop usually requires at least a couple of minutes of idling to ensure safe turbo temps before shutdown. > want to make sure you are keeping the emmisions flowing for it too. . Emissions? From an idling diesel? Do you have any idea how much LESS fuel an idling diesel consumes vs. that of an idling gas engine? There's no need to maintain a specific A/F ratio on a diesel... it could be as little as 100:1. Compare that to the 15:1 ratio of a gasoline engine, and you tell me who's polluting more? > I have run some heavy equipment on and off ove rthe years and when I So you abused vehicles that you didn't have to pay for... big deal. > turbo diesels were as "fragile" as Max Dodge suggests, there would be > a lot of dead ones out there. It's not like a turbo's going to grenade itself from being shut down hot once. However, over time, premature bearing wear will develop if they're constantly shut down hot. A little preventive action goes a long way to extending the life of a turbo. > Only the Duramax uses a water-cooled turbo - both the Powerstroke and > the Cummins turbo's are air-cooled. Don't the Holset turbos on the Cummins engines have oil cooled bearings? I'm not familiar with the Powerstroke. http://www.holset.co.uk/files/2_3_2-turbocharger%20components.php Trivia: The aircraft ECS turbine compressors that I worked on had air bearings. Not air cooled bearings, air bearings. The shafts rotated on pressurized air. SignatureKen > Don't the Holset turbos on the Cummins engines have oil cooled bearings? Did I say air-cooled? Man... I'm out of it today (too much work in the shop). Sorry 'bout that... yes, they're oil-cooled >It's not like a turbo's going to grenade itself from being shut down hot >once. However, over time, premature bearing wear will develop if they're >constantly shut down hot. A little preventive action goes a long way to >extending the life of a turbo. You guys be carefull going around town with a turbo - Bush might think you're a terrorist. beekeep > > It will not cook driving around town. Most turbos used water cooled > > bearings too. [quoted text clipped - 29 lines] > constantly shut down hot. A little preventive action goes a long way to > extending the life of a turbo. i thought we were done with him.. how come we both cant help ourselves? just askin Tom...<BG> Signature-Chris 05 CTD 06 Liberty CRD Real trucks don't need spark plugs >>Yeah, that coking oil on turbo bearings is a real ego problem. > [quoted text clipped - 11 lines] >The SnoMan >www.thesnoman.com man, you just won't stop will ya? why don't you just paint a friggin target on yourself? > It will not cook driving around town. That depends directly on the load being moved, which is not a given in this discussion. > If turbo diesels were as "fragile" as Max Dodge suggests, there would be > a lot of dead ones out there. The suggestion was that turbos (which ARE fairly "fragile" by inherent nature) need some time to spool down. This means that rather than "ego", it may be a matter of conservative maintenance or convenience on the part of the owner. But hey, feel free to spit vile and crap based on your stupid (yup, its stupid) opinion on the characteristics of diesels. SignatureMax "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) >>Yeah, that coking oil on turbo bearings is a real ego problem. > [quoted text clipped - 11 lines] > The SnoMan > www.thesnoman.com > The suggestion was that turbos (which ARE fairly "fragile" by inherent > nature) need some time to spool down. Define "time". If they aren't being spun up by the exhaust gas, they won't spin for long. > I don't own a diesel, never have. I've driven a few (925's, hummv's). > I see diesel truck owners stop at a store or business and leave the engine > running. Not on particularly cold or hot days, either. Why is that? > Is there some reason not to shut the engine off? http://www.turbodieselregister.com/forums/showthread.php?t=161721 > I don't own a diesel, never have. I've driven a few (925's, hummv's). > I see diesel truck owners stop at a store or business and leave the engine > running. Not on particularly cold or hot days, either. Why is that? > Is there some reason not to shut the engine off? I leave mine running so the people gassing up next to me can enjoy my ode-de-diesel parfume'. If they are black, I usually rev it up real good before pulling out. SignatureMoParMaN---Remove Clothes To Reply! --SCUD Coordinates 32.61204 North: 96.92993 West-- >> I don't own a diesel, never have. I've driven a few (925's, >> hummv's). I see diesel truck owners stop at a store or business and [quoted text clipped - 3 lines] > I leave mine running so the people gassing up next to me can enjoy my > ode-de-diesel parfume'. My exhaust smells like ode-de-fried-chicken. SignatureKen >>> I don't own a diesel, never have. I've driven a few (925's, >>> hummv's). I see diesel truck owners stop at a store or business and [quoted text clipped - 5 lines] > > My exhaust smells like ode-de-fried-chicken. They should pay you for advertising. SignatureMoParMaN---Remove Clothes To Reply! --SCUD Coordinates 32.61204 North: 96.92993 West-- > >> I don't own a diesel, never have. I've driven a few (925's, > >> hummv's). I see diesel truck owners stop at a store or business and [quoted text clipped - 5 lines] > > My exhaust smells like ode-de-fried-chicken. mine too, been getting the b20 from the local shell, works well and less smoke. havent noted any loss of power or mpg either. how's it working out for you ken? Signature-Chris 05 CTD 06 Liberty CRD Real trucks don't need spark plugs Christopher Thompson wrote: >>>> I don't own a diesel, never have. I've driven a few (925's, >>>> hummv's). I see diesel truck owners stop at a store or business and [quoted text clipped - 12 lines] > less smoke. havent noted any loss of power or mpg either. how's it > working out for you ken? Other than the neighborhood dogs following me down the street it's working out great. I haven't noticed any loss of power but my mileage is down slightly on B100. Less smoke and it runs quieter. Ken > Other than the neighborhood dogs following me down the street it's working > out great. I haven't noticed any loss of power but my mileage is down > slightly on B100. Less smoke and it runs quieter. > > Ken where are you getting b100? are you brewing yourself? any stability problems? how much did you loose on the 100? the only station selling bio in this area, is actually in centerville and sells b20 along with regular petrol. i havent noticed a reduction in noise on the liberty or the ram with the b20, maybe its not diluted enough to quieten them much. my only other problem is im spending more at KFC. im glad to hear that people are running the bio, ive been a long time proponet of bio fuels, the infastucture is already in place to dist. Signature-Chris 05 CTD 06 Liberty CRD Real trucks don't need spark plugs > > Other than the neighborhood dogs following me down the street it's working > > out great. I haven't noticed any loss of power but my mileage is down [quoted text clipped - 19 lines] > > Real trucks don't need spark plugs Try this: http://www.biodiesel.org/buyingbiodiesel/retailfuelingsites/ S.A. White oil company sells it here. I bought a tank of B100 from them to see how my truck would run on it before I started making my own. I lost about 1.5 mpg on that tank. So far I've made 60 gallons but I haven't burned any of that yet. There shouldn't be any stability problems with it in warm weather. B100 starts to jell somewhere around 40°F. I'm going to have to experiment with different blends in the freezer this fall. It rarely goes below 20°F here in the winter so I'm going to shoot for a blend good down to 15°F in the colder months. SignatureKen Try this: http://www.biodiesel.org/buyingbiodiesel/retailfuelingsites/ S.A. White oil company sells it here. I bought a tank of B100 from them to see how my truck would run on it before I started making my own. I lost about 1.5 mpg on that tank. So far I've made 60 gallons but I haven't burned any of that yet. There shouldn't be any stability problems with it in warm weather. B100 starts to jell somewhere around 40°F. I'm going to have to experiment with different blends in the freezer this fall. It rarely goes below 20°F here in the winter so I'm going to shoot for a blend good down to 15°F in the colder months. SignatureKen thats the info i was looking for. im south of you a little ways and have simmular weather, let me know how it works out for you on your blends. for now i think im gonna stick with the b20 at the shell, get a few more miles with that before/if i get into trying to make my own. thanks for the link, i see they dont have the station i use listed but do have one in perry and another in macon listed, neither of witch i had heard about, as far as a bio retailer. -- -Chris 05 CTD 06 Liberty CRD Real trucks don't need spark plugs |
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